Wednesday 10 April 2013, Inside Climate News, [en]
Tuesday 9 April 2013, The Examiner, [en]
Monday 8 April 2013, Business Insider, [en]
Sunday 7 April 2013, Kentucky.com, [en]
samedi 6 avril 2013, par info Coordination marée noire [en].
Friday 5 April 2013, Inside Climate News, [en]
Tuesday 2 April 2013, Inside Climate News, [en]
Tuesday 2 April 2013, Business Insider, [en]